Shock-absorbing device



P. C11-'LYNN SHOCK ABS ORBING DEVICE Filed April 28', 1924 2 sheetssheet 2 Patented ay 19, i925..

PATRICK OFLYNN, or PIRBRIGHT, ENGLAND.

SHO'GK-BSORBING DEVICE.

Applicationled April 28, 1924. Serial No. 709,670.

To dll whom t may concern:

Be it known that I, .PATRICK OFLYNN, a

` citizen of the Irish Free State, and a resident of Pirbright, county of" Surrey, England,

have invented a certain new and useful Im- ,provement in Shock-Absorbing Devices, of

which the following is a specification..

rl`his linvention i'elates to shock-absorbing devices fr absorbing shocks between relatively moving parts, serving as a buffer vtherebetween, and .provides apparatus to serve in lieu of springs as usually provided for the purpose. f

According to my invention I provide a floating member which carries on each of its sides` blocks or hollow casings of ,rubber or otlierresilient material which are adapted to be compressedxin absorbing shocks. Said N `blocks or casings may be in the form of either solid blocks or pneumatic compart ments adapted to be'infiated to a pressure. 'lhe floating memberI may, according to f the varying applications of the invention, be

in the form of a simple floating plate carrying t'he blocks or the like 4on each of its sides, or-a pivoted lever carrying the blocks,

and may be of rod, wire, plaited wire, hat metal or a section metal bar, and iin either case may be of `a springy nature, and the solid or hollow rubber or like buffers may extend through or around `the latter so thaty each one serves a buffer on each side of sapid oating member.

In the case of separate buffer blocks or casings on the respective sides of the Hoeting member, such blocks or casings may be 'construeted'l with beads engaging in rims or inr place ofthe usual suspension springs, u and in another applicationy to a vehicle" saddle.

YIhe invention` will be the more readily'understood by reference to the .accompanying sheets of drawings, wherein :-4

Figure 1 represents a saddle in side eleva-V tion, embodying my invention.`

Alternatively, in the 'case of` Figure 2 apparatus embodying my invention, for absorbing shocks between the road or track wheel and chassis of avehicle,

Figure 3a vertical side elevation of .en-

closed apparatus, being a modicat/ion that shown in Figure 1; and

Q -Figure t a sectional plan on line IV-IV l in Figure B.

Figure 5 is a side view of a modified forni 'offapparatus for absorbing shocks between the road or track nWheel axle and chassis; and,

purpose. v .Referring to Figure 1,"theire is arranged between the seat 1 of the saddle, and the Figure 6 is a sidefview of a still further modified form vof apparatus for the samel f lower part 2 aliixed to the vehicle or machine, I a floating member 3 mounted on parallel vertical pillars lfiXed at their upper ends at the points 5. The floating member 3 is of wire, rod, or metal strip,` and is looped or.

constructed tojorm loops or orifices 6. Said loops or orifices encircle balls or blocks 7 of rubber or the like, which are peripherally rgrooved ltoreceive the floating member 3. ylhe lower lpart 2 which is afi'ixed to the vehicle or machine is floatably mounted on the pillars 4., stops 8 being provided at the bottom of said pillarsl v.

side frame 10,- and parallel vertical, pillars 11 are affixed to the horizontal flange of the 'plate 9, 'extending downwardly.- rllhe floatinglmember consists oft a platen 12 mounted on the' pillars 11, said plate carrying cheeks 13 which between them form channels in which are affixedr'ubber or like blocks, one each side of the floating member e 12, said blocks each being formed with projections 14. 'Ihe'upper surface of the road or track wheel axle l5 bears against the underside of the plate -16 which is Hoatably mounted on the pillars 11. The stays'l'? support the pillars 11 at their lower ends.

'Ihe form of apparatus illustrated in Figures 3 and 4 is somewhat similar in constructiontq that illustrated in Figure 2, but is enclosed in a box-like casing, the front wall being shown broken away in Figure 3. In this construction the floating member is Referring to Figure 2, a right angle section plate 9is aiixed tov the vehicle chassis ico in two parts'comprising plat-es 18 and 19,

each of which'have .rubber or klike blocks .'20 secured on each of'their sides; Each of said plates are ofreduced width at their ends, forming tongues 21, and said tongues l travel in vertical grooves .formed between right angular strips 22,interio`rly secured to the endl walls-23 of the box casing. f Affloating plate 24 may separate the two sets of buers. The apparatus is secured by the lugs 25 on the vehicle chassis and the road or 'track wheel axle 26 is fixedly housed within the bracket 27 which is mounted to a pla-te 28 of similar shape to the floating members 18, .19, and free to float within the casiiig. Rubber or like cushions 29 are provided fior taking the rebound action! f `It is to be understood that any combina? tion of the two constructions shown in Figure 2 and in Figures 3 4and 4 respectively -may be adopted, or in either construction the inner movable parts maybe only partly encased. 1 Y A .In the construction of apparatus shown in-Figuie 5, the floating member is in the` form of a lever 30, pivoted4 at 31, and 32 represents a frame which holds 'rubber or like blocks 33, 34 4and 35; Upward move-y ment of the road or track wheel axle 36- causes -the lever to' turn about they pivot 3 1-,l and compress the blocks 34 land 35. The

block 33'serves for rebound purposes. The lugs 37 of the frame 32 are clamped to a pat38 ofthe chassis. rThe apparatus Hillustrated in Figure 6, intended to replace transverse or' other part ellipticalshaped spring, is `of triangular form, comprising outer plates 39, 40, hinged together at 41. `The plate 39 is fixed to Athe bracket y42 clamped to the chassis frame, and supported by .lugv43, and the road or track wheel axle 44 bears 'under the plate 40. The floating member 45 is also hinged at .41 and Carries a circular buffer 46 having a tyre of rubber or' the like 47. The free ends of the floating member 45, and of the platev 40 are mounted to oat onthe pins 48 and 49 respectively in the extension ,piece 50 of the bracket 42.l

In all of the constructions described it is preferred to use sponge rubber or solid rubber'as the shock-absorbing medium, being of square, rounded, tapering, or other desired cross-sectional shape.

Springing devices constructed according to my invention possess theadvantage of elimination of friction, and consequently, silence of operation, as compared with, say, laminated springs.. I claim `1. A shock absorbing constructionufor vehicles including a relatively fixed member having guide means, a relatively movable member engaging saidguide means, a floatA ing member also engaging said guide vmeans and arranged between said first named members, aiid resilient elements embraced by said 'movable member slidably engaging said guide means, and an intermediate resilient unit comprisinga floating member also slidably engaging said guide means and embracing and carrying therewith compressible elements having a bearing engagement withsaid relatively fixed and movable meinbers.

3. A shock absorbing" construction for vehicles and the like including relatively fixed and movable members, parallel vertical pillars carried by one of said members, buffers of-resilient material arranged between said movable members and a floating member engaging said pillars and also embracing said buffers. A i

4. "A shock absorbing construction for vehicles including a body constituting a relatively fixed member land a 'chassis part con- Astituting a relatively movable member, guide elements attached thereto respectively bear- 4 ing against the body and the chassis part, said resrlie'nt unit having extension elements for engaging said guide means carried by' the body. y,

5. A shook absorbing construction for vehicles and the like comprising a body-part constituting a,relatively fixed member an d `a chassis pai/t constituting a relatively movable member, fixed vertical guide members rigidly carried by the body part and the said chassis part being slidablel on said guide members, and aresilient unit including a floatingframe slidably engaging the said guide elementsand. having resilient membersattached thereto respectively :engaging with the body and chassis part.

In testimony whereof I have affixed my signature hereto this 14th day of April,

PATRICK or'LrNN. j 

